When to announce?

Wanting to announce our pregnancy soon, but kinda want to wait until I'm through the first trimester! I'd love to announce on Mothers Day, but I'll only be 11 weeks then. OR should I wait a little longer to post on Fathers Day when I'm a bit further along? 
Also, we've seen the baby and heard the heartbeat, so I know that's a good sign that all is well and should stay well, but I'm still weary 😊